W. Nicoll 
85 
The oral sucker is sub-terminal and measures 0-29 mm. in length 
by 0-22 mm. in breadth. The ventral sucker measures 0-28 x 0-39 mm., 
but the transverse diameter is variable. The sucker is raised on a short 
pedicle and is situated about 0-7 mm. from the anterior end. 
The comparatively large pharynx is contiguous with the oral sucker 
and measures 0-21 x 0-14 mm. There is a short oesophagus about 
0-07 mm. long. The intestinal diverticula diverge widely and extend 
to the posterior end of the body. Near the bifurcation each is some¬ 
what inflated, forming a sight protuberance directed anteriorly. 
The genital aperture is situated in the middle line just in front of 
the ventral sucker, at the base of the pedicle. There is a long tube¬ 
like genital sinus which extends straight back to a short distance behind 
the ventral sucker. Its walls are provided with longitudinal and circular 
muscle fibres. The cirrus-pouch proper is also elongated and extends 
back a distance of over 0-5 mm. behind the ventral sucker. It thus 
extends well beyond the middle of the body. It contains a short ductus 
ejaculatorius, a long straight pars prostatica, surrounded by numerous 
prostatic cells, and part of a highly convoluted vesicula seminalis. 
The greater part of the vesicula, however, hes external to the pouch, 
and extends some distance behind it, overlapping the ovary. 
Immediately behind and adjacent to the end of the cirrus-pouch 
lies the large globular ovary with a diameter of 0-18 mm. It lies a 
little to the left side of the middle line. The testes lie just behind the 
ovary. They are obliquely disposed, the anterior being on the right 
side. They are closely apposed to each other and have an irregularly 
ovoid shape. They are somewhat smaller than the ovary, their greatest 
diameter being only 0-14 mm. 
The yolk glands are very poorly developed and are confined to the 
sides of the body on the level of the ovary and testes, beyond which 
they do not extend. The yolk follicles are comparatively small and not 
numerous. There is no receptaculum seminis and the presence of 
Laurer’s canal could not be determined. 
The uterus is confined to the posterior part of the body behind 
the testes. It forms loose straggling convolutions, chiefly in a transverse 
direction. The terminal part of the uterus unites with the genital 
sinus at its junction with the cirrus-pouch. The eggs are disposed in 
a single row and are fight in colour. They measure 0-042 x 0-021- 
0-023 mm. 
The systematic position of this species is very doubtful. It betrays 
unmistakable affinities with the Hemiuridae but it shows so many 
3—2 
